Process for the treatment of cellulose textile materials with hardenable resin precondensation products and brightening agents



United States Patent cc 3,285,770

Patented Nov. 15, 1966 3,285,770 pounds, it can now take place simultaneously. It is fur- PROCESS FOR THE TREATMENT OF CELLULOSE ther noteworthy that the reddish tint of the brightening MATERIALS WITH HARDENABLE effect generally caused by the compounds to be used ac- BRI PRODUCTS AND cording to the invention, compensates, at least partially, Josef Hegemann, Leverkusen, and Walter Scholermann, 5 ggi g i l gl 'i. when.usmg Zmc Cologne, Germany, asslgnors to Farbenfabrlken Bayer ys m com ma Ion W1 certam reactant Aktiengesellschaft, Leverkusen, Germany, a corporaresins' fion ofcermany The following examples serve to illustrate the invention N0 Drawing. Filed Aug. 22, 1961,.Ser. No. 133,054. it o w limiting the Scope thereof- Claims priority, application Germany, Aug. 30, 1960,

320 6 E I 1 4 Claims. ci.117-33.5 mm 8 The present invention relates to a process for the treat- To 120 g. of a commercial liquid hardenable resin ment of cellulose textile materials with hardenable resin precondensation product based on a dimethy'lol-triazone precondensation products and brightening agents. The is added a solution of 2 g. of the whitening agent Hoornorn N N process of the invention consists in treating the cellulose in 100 ml. of water and the solution is made up to 900 textile materials in a single bath simultaneously with the ml. with condensation water. The mixture is then adhardenable resin precondensation products and with bisjusted to a pH value of 5-5.5 by the addition of acetic triazinylaminostilbene compounds corresponding to the acid and a solution of 10 g. of zinc chloride in 100 ml. general formula of water is added. A poplin fabric cut, pre-cleaned and p" X- J \(|3-NHQ-GH=CH NH(|]/ fi-N.OH2.CHz.sO Y

. N N N N SOaY SOaY o 0R1 $R2 wherein R and R denote lower alkyl radicals, e.g. the bleached in conventional manner is impregnated with this methyl and/or ethyl radical, and R means hydrogen or solution on the foulard and squeezed oil to a moisture the methyl radical, whilst X stands for the radical of an absorption of about 80%. Subsequently the fabric is aliphatic or cycloaliphatic amine and Y denoteshydrogen dried to a residual moisture of about 10% and, finally, or a salt-forming ion. dried at 150'C. for 5 minutes. The fabric, provided in As amines whose radicalis represented by X there may this way with a so-called rapid-iron finish, obtains at the be considered for example ammonia, monomethylamine, same time an intense neutral white tint. dimethylamine, monoethanolamine, N-methyl-monoetha The brightening agent used in this example can be obnolamine, diethanolamine, 'mono-isopropanolamine, mor- V tained in the following way:' pholine, piperidine and piperazine, and as hardenable res- To 2000 parts by weight of methanol are added 420 in precondensation products there may be mentioned for parts by weight of sodium bicarbonate and 462 parts by example dimethylol-urea, dimethylolethylene-urea, diweight of cyanuric chloride, and the mixture is allowed methylol-dihydroxyethylene-urea, tetramethylol-acetyleneto react with good stirring at room temperature for about diurea, hexamethylol-melamine and their alkyl ethers. 3 hours. 1050 partsby weight of 4-nitro-4-aminostilbene- The above hardenable resin precondensation products disulphonic acid-(2,2) in the form of a 8% aqueous solumay be somewhat more specifically described as a hardention of the sodium salt are then run into the reaction mixable resin precondensation product inclusive of amidture which is brought to a temperature of 3540 C. and formaldehyde and amine-formaldehyde precondensation allowed to react, until the starting products can no longer products. 1 be detected.

Compared with brightening agents hitherto used for the By the addition of 525 parts by weight of diethanoltreatment of cellulose textile materials in combination amine, heating of the reaction mixture to 100 C. while with hardenable resin precondensation products, the bisdistilling off the methanol, and reducing the reaction solutriazinyl-aminostilbene compounds proposed according to tion thus obtained with iron and acetic acid, there is obthe invention are distinguished by being substantially more tained 2-methoxy-4-dieth-anolamino-1,3,5-triazinyl-6(4,4'

stable in the aqueous solutions containing the hardenable diaminostilbene-disulphonic acid-(2,2).

resin precondensation products. It is therefore no longer This amine can either be isolated by precipitation With necessary to carry out the brightening of the cellulose acid or further processed directly from the solution. This textile materials separately from the treatment with hardis carried out as follows:

enable resin precondensation products; instead, with the Again, 2000 parts by weight of methanol, 420 parts use of the proposed bis-triazinylamino-stilbene com-- by weight of sodium bicarbonate and 462 parts by weight of cyanuricchloride are allowed to react with one an-. other as described above and to the reaction mixture obtained are added 1430 parts by weight of 2-methoxy-4- diethanolamine 1,3,5 triazinyl-6-(4,4'-diaminosti1benedisulphonic acid-(2,2) in the form of a 8% aqueous solution of the sodium salt, the mixture is allowed to react completely at 35-40 C. as described above and subsequently 625 parts by weight of taurine present in the form of an aqueous solution are added. By heating to -manner indicated in Example 1. by applying instead of taurine and diethanolamine the appropriate amounts of methyltaurine and monoethanolamine.

We claim:

1. A cellulose textile material containing a hardenable resin precondensation product selected from the group consisting of an amid-formaldehyde and an amine-formaldehyde and a brightening amount of a compound having the formula To 1250 parts by weight of methanol are added 273 parts by weight of sodium bicarbonate and 300 parts by weight of cyanuric chloride, and the mixture is allowed to react with good stirring at room temperature for about 3 hours. 293 parts by weight of 4,4'-diaminostilbene-disulphonic acid-2,2 in the form of a 8% aqueous solution N N I N of the sodium salt are then run into the reaction mixture, which is brought to a temperature of -40 C. and allowed to react, until the starting product can no longer be detected. By the addition of 170 parts by weight of diethanolamine and 203 parts by Weight of taurine in the form of an approximately 20% aqueous solution of the sodium salt and by heating the reaction mixture of 100 C. while distilling oil the methanol, the brightening agent used according to the invention is obtained. It can be isolated from the mother liquor by cooling or salting out.

Example 2 mercial liquid synthetic resin precondensation product based on dimethylol-ethylene urea, an aqueous solution of 2 g. of the brightening agent S a a wherein R and R are lower alkyl; R is a member selected from the group consisting of hydrogen and methyl; X is a member selected from the group consisting of an aliphatic and a cycloaliphatic amine; and Y is a member selected from the group consisting of hydrogen and a salt-forming ion.

2. A process for treating cellulose textile material comprising contacting said material with a treating bath containing a hardenable resin precondensation product selected from the group consisting of an amid-formaldehyde and an amine-formaldehyde and a brightening amount of a compound having the formula N Ilk o Nomor-nso Y SOgH oer-r,

and an aqueous solution of 10 g. of zinc chloride by H References Cited by the Examiner UNITED STATES PATENTS 8/1958 Ackermann. 1/1962 Fleck.

WILLIAM D. MARTIN, Primary, Examiner.

RICHARD D. NEVIUS, r. G. DAVIS,

Assistant Examiners. 

2. A PROCESS FOR TREATING CELLULOSE TEXTILE MATERIAL COMPRISING CONTACTING SAID MATERIAL WITH A TREATING BATH CONTAINING A HARDENABLE RESIN PRECONDENSATION PRODUCT SELECTED FROM THE GROUP CONSISTING OF AN AMID-FORMALDEHYDE AND AN AMINE-FORMALDEHYDE AND A BRINGTENING AMOUNT OF A COMPOUND HAVING THE FORMULA 